79 lines
2.2 KiB
Markdown
79 lines
2.2 KiB
Markdown
---
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id: bad87fee1348bd9aedf08816
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title: 用 a 實現網頁間的跳轉
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challengeType: 0
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videoUrl: 'https://scrimba.com/p/pVMPUv/c8EkncB'
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forumTopicId: 18226
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dashedName: link-to-external-pages-with-anchor-elements
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---
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# --description--
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你可以用 `a`（Anchor，簡寫爲 a）來實現網頁間的跳轉。
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`a` 需要一個 `href` 屬性指向跳轉的目的地。 同時，它還應有內容。 例如：
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```html
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<a href="https://www.freecodecamp.org">this links to freecodecamp.org</a>
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```
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瀏覽器將顯示文本 `this links to freecodecamp.org`，這是一個可點擊的鏈接。 你可以通過這個鏈接訪問 `https://www.freecodecamp.org`。
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# --instructions--
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創建一個內容文本爲 “cat photos” 的 `a` 元素，鏈接指向 `https://www.freecatphotoapp.com`。
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# --hints--
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`a` 元素應有錨文本 `cat photos`。
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```js
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assert(/cat photos/gi.test($('a').text()));
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```
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`a` 元素應鏈接到 `https://www.freecatphotoapp.com`。
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```js
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assert(/^https?:\/\/(www\.)?freecatphotoapp\.com\/?$/i.test($('a').attr('href')));
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```
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確保 `a` 元素有結束標籤。
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```js
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assert(
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code.match(/<\/a>/g) &&
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code.match(/<\/a>/g).length === code.match(/<a/g).length
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);
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```
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# --seed--
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## --seed-contents--
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```html
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<h2>CatPhotoApp</h2>
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<main>
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<img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back.">
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<p>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>
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<p>Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>
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</main>
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```
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# --solutions--
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```html
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<h2>CatPhotoApp</h2>
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<main>
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<img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back.">
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<a href="https://www.freecatphotoapp.com">cat photos</a>
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<p>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>
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<p>Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>
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</main>
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```
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